Beijing Fengtai District Hua Gong / Chemistry Greening Engineering Jing Guan Shi Engineering Low Carbon Environmental Protection Ecological Construction Construction Engineering Environmental Treatment Environmental Engineering Environmental Protection Processing Municipal Engineering Shi Zheng Gong Yong Engineering Jing Taoist Temples Greening 瞪羚企业 中关村高新技术企业 科技型中小企业 市科技型中小企业 高新技术企业 省级高新技术企业 市级高新技术企业